Kazuyuki Sakuma

Profile Information

Affiliation: Japan Atomic Energy Agency

Degree: Doctor of Engineering(Tokyo University of Agriculture and Technology)

J-GLOBAL ID: 201801011024202720
researchmap Member ID: B000322177

Research Interests

Research Areas

Research History

Apr, 2023 - Present

客員研究員, マサチューセッツ工科大学 (MIT)
Apr, 2020 - Present

Collaborative Laboratories for Advanced Decommissioning Science, Japan Atomic Energy Agency
Apr, 2015 - Mar, 2020

福島環境安全センター, 日本原子力研究開発機構

Education

Papers

Impact of fluvial discharge on $^{137}$Cs in the ocean following the Fukushima Daiichi Nuclear Power Station accident

Tsumune Daisuke*, Tsubono Takaki*, Misumi Kazuhiro*, Sakuma Kazuyuki, Onda Yuichi*

Pure and Applied Chemistry, 16, Jan, 2024 Peer-reviewed
Estimation of future caesium-137 flux through river using climate change scenarios

Irisawa Ayumi*, Sakuma Kazuyuki, Takeuchi Yukio*, Taniguchi Keisuke*, Onda Yuichi*

KEK Proceedings 2023-2, 29-33, Nov, 2023 Peer-reviewed
Simulation study on $^{3}$H behavior in the Fukushima coastal region; Comparison of influences of discharges from the Fukushima Daiichi and rivers

Sakuma Kazuyuki, Yamada Susumu, Machida Masahiko, Kurikami Hiroshi, Misono Toshiharu, Nakanishi Takahiro, Iijima Kazuki

Marine Pollution Bulletin, 192 115054\_1-115054\_10, Jul, 2023 Peer-reviewed
Watershed-geochemical model to simulate dissolved and particulate $^{137}$Cs discharge from a forested catchment

Sakuma Kazuyuki, Hayashi Seiji*, Yoshimura Kazuya, Kurikami Hiroshi, Malins A., Funaki Hironori, Tsuji Hideki*, Kobayashi Takamaru*, Kitamura Akihiro, Iijima Kazuki

Water Resources Research, 58(8) e2021WR031181\_1-e2021WR031181\_16, Aug, 2022 Peer-reviewed
Temporal variability of $^{137}$Cs concentrations in coastal sediments off Fukushima

Suzuki Shotaro*, Amano Yosuke*, Enomoto Masahiro*, Matsumoto Akira*, Morioka Yoshiaki*, Sakuma Kazuyuki, Tsuruta Tadahiko, Kaeriyama Hideki*, Miura Hikaru*, Tsumune Daisuke* …

Science of the Total Environment, 831 154670\_1-154670\_15, Jul, 2022 Peer-reviewed
Remobilisation of radiocaesium from bottom sediments to water column in reservoirs in Fukushima, Japan.

Hironori Funaki, Hideki Tsuji, Takahiro Nakanishi, Kazuya Yoshimura, Kazuyuki Sakuma, Seiji Hayashi

The Science of the total environment, 812 152534-152534, Mar 15, 2022
A Modeling approach to estimate $^{3}$H discharge from rivers; Comparison of discharge from the Fukushima Dai-ichi and inventory in seawater in the Fukushima coastal region

Sakuma Kazuyuki, Machida Masahiko, Kurikami Hiroshi, Iwata Ayako, Yamada Susumu, Iijima Kazuki

Science of the Total Environment, 806(Part 3) 151344\_1-151344\_8, Feb, 2022 Peer-reviewed
Impact of Extreme Typhoon Events on the Fluvial Discharge of Particulate Radiocesium in Fukushima Prefecture

Takahiro Nakanishi, Takuya Ohyama, Hiroki Hagiwara, Kazuyuki Sakuma

Journal of Coastal Research, 114(sp1), Oct 6, 2021
Dynamics of $^{137}$Cs in water and phyto- and zooplankton in a reservoir affected by the Fukushima Daiichi Nuclear Power Plant Accident

Tsuji Hideki*, Nakagawa Megumi*, Iijima Kazuki, Funaki Hironori, Yoshimura Kazuya, Sakuma Kazuyuki, Hayashi Seiji*

Global Environmental Research (Internet), 24(2) 115-127, Jun, 2021 Peer-reviewed
Factors affecting 137Cs concentrations in river water under base-flow conditions near the Fukushima Dai-ichi Nuclear Power Plant

Takahiro Nakanishi, Hironori Funaki, Kazuyuki Sakuma

Journal of Radioanalytical and Nuclear Chemistry, 328(3) 1243-1251, Jun, 2021
Leaching characteristics of 137Cs for forest floor affected by the Fukushima nuclear accident: A litterbag experiment

Kazuyuki Sakuma, Kazuya Yoshimura, Takahiro Nakanishi

Chemosphere, 264 128480-128480, Feb, 2021 Peer-reviewed
Calculations for ambient dose equivalent rates in nine forests in eastern Japan from 134Cs and 137Cs radioactivity measurements

Alex Malins, Naohiro Imamura, Tadafumi Niizato, Junko Takahashi, Minsik Kim, Kazuyuki Sakuma, Yoshiki Shinomiya, Satoru Miura, Masahiko Machida

Journal of Environmental Radioactivity, 226 106456-106456, Jan, 2021
Reservoir sediments as a long-term source of dissolved radiocaesium in water system; a mass balance case study of an artificial reservoir in Fukushima, Japan

Hironori Funaki, Kazuyuki Sakuma, Takahiro Nakanishi, Kazuya Yoshimura, Estiner Walusungu Katengeza

SCIENCE OF THE TOTAL ENVIRONMENT, 743, Nov, 2020 Peer-reviewed
Corrigendum to "A modeling approach to estimate the 137Cs discharge in rivers from immediately after the Fukushima accident until 2017" [J. Environ. Radioact. 208-209 (2019) 106041].

Kazuyuki Sakuma, Takahiro Nakanishi, Kazuya Yoshimura, Hiroshi Kurikami, Kenji Nanba, Mark Zheleznyak

Journal of environmental radioactivity, 216 106201-106201, May, 2020
Numerical study of transport pathways of Cs-137 from forests to freshwater fish living in mountain streams in Fukushima, Japan

Hiroshi Kurikami, Kazuyuki Sakuma, Alex Malins, Yoshito Sasaki, Tadafumi Niizato

JOURNAL OF ENVIRONMENTAL RADIOACTIVITY, 208, Nov, 2019 Peer-reviewed
A modeling approach to estimate the Cs-137 discharge in rivers from immediately after the Fukushima accident until 2017

Kazuyuki Sakuma, Takahiro Nakanishi, Kazuya Yoshimura, Hiroshi Kurikami, Kenji Nanba, Mark Zheleznyak

JOURNAL OF ENVIRONMENTAL RADIOACTIVITY, 208, Nov, 2019 Peer-reviewed
Trend of 137Cs concentration in river water in the medium term and future following the Fukushima nuclear accident

Nakanishi Takahiro, Sakuma Kazuyuki

Chemosphere, 215 272-279, 2019 Peer-reviewed
福島県内を想定した複雑な実環境中での空間線量率分布解析システム(3D‐ADRES)の研究開発―リモートセンシング情報の活用と各環境因子(地形・土壌・建物・樹木等)の影響評価―

金敏植, MALINS Alex, 佐久間一幸, 北村哲浩, 町田昌彦, 長谷川幸弘, 柳秀明

RIST News, (64) 3‐16-16, Sep 20, 2018
Evaluation of particulate 137Cs discharge from a mountainous forested catchment using reservoir sediments and sinking particles

Hironori Funaki, Kazuya Yoshimura, Kazuyuki Sakuma, Shatei Iri, Yoshihiro Oda

Journal of Environmental Radioactivity, 189 48-56, Sep 1, 2018 Peer-reviewed
Applicability of Kd for modelling dissolved 137Cs concentrations in Fukushima river water: Case study of the upstream Ota River

Kazuyuki Sakuma, Hideki Tsuji, Seiji Hayashi, Hironori Funaki, Alex Malins, Kazuya Yoshimura, Hiroshi Kurikami, Akihiro Kitamura, Kazuki Iijima, Masaaki Hosomi

Journal of Environmental Radioactivity, 184-185 53-62, Apr 1, 2018 Peer-reviewed

Misc.

Research and development behind a computation system for 3D distributions of air dose rates in the environment; Estimating environmental radiation doses using PHITS together with remote sensing data

Kim M., Malins A., Sakuma Kazuyuki, Kitamura Akihiro, Machida Masahiko, Hasegawa Yukihiro*, Yanagi Hideaki*

Isotope News, (765) 30-33, Oct, 2019
Status of Study of Long-term Assessment of Transport of Radioactive Contaminants in the Environment of Fukushima (FY2018)

JAEA-research, 2019(2) 1-14,1-235, Aug, 2019
放射性セシウムの森林からの流出が淡水魚の濃度に与える影響に関する解析的検討

操上広志, 佐久間一幸

日本地球惑星科学連合大会予稿集(Web), 2018 ROMBUNNO.MAG33‐P05 (WEB ONLY), 2018
PHITSによる空間線量率評価のための現実的なモデル作成ツールの開発

KIM Minsik, MALINS Alex, 吉村和也, 佐久間一幸, 操上広志, 北村哲浩, 町田昌彦

日本地球惑星科学連合大会予稿集(Web), 2018 ROMBUNNO.MAG33‐11 (WEB ONLY), 2018

Presentations

Remobilization mechanism of radiocesium from bottom sediments in reservoir

Funaki Hironori, Nakanishi Takahiro, Yoshimura Kazuya, Sakuma Kazuyuki, Tsuji Hideki*, Hayashi Seiji*

日本陸水学会第87回大分大会
Anthropogenic impacts on temporal decrease in air dose rate in urban areas, 2; Simulation analysis using detailed environmental model by 3D-ADRES

Kim M., Yoshimura Kazuya, Sakuma Kazuyuki, Malins A.*, Abe Tomohisa, Nakama Shigeo, Machida Masahiko, Saito Kimiaki

日本原子力学会2023年秋の大会
Simulation analysis using 3D-ADRES; Modelling the effects of decontamination activities and farming

Kim M., Yoshimura Kazuya, Sakuma Kazuyuki, Malins A.*, Abe Tomohisa, Nakama Shigeo, Machida Masahiko, Saito Kimiaki, Hasegawa Yukihiro*, Yanagi Hideaki*

第12回環境放射能除染研究発表会
Estimation of radiocesium discharges from rivers to the ocean

Sakuma Kazuyuki

令和4年度環境創造センター成果報告会
Investigation on distribution of radioactive substances in Fukushima, 8; Improvement of the MERCURY model and its application to the Fukushima

Sakuma Kazuyuki, Machida Masahiko, Yamada Susumu, Kurikami Hiroshi

日本原子力学会2022年秋の大会
Contribution of particulate $^{137}$Cs from rivers to $^{137}$Cs concentrations in coastal sediment off Fukushima

Suzuki Shotaro*, Sakuma Kazuyuki, Tsuruta Tadahiko, Matsumoto Akira*, Amano Yosuke*, Enomoto Masahiro*, Morioka Yoshiaki*, Kamiyama Kyoichi*, Takata Hyoe*

IER International Symposium Fukushima 10 years; Forest, River, Ocean, and Food -Remaining issues for restoration-
Investigation on distribution of radioactive substances in Fukushima, 16; Development of a watershed modeling for radionuclides

Sakuma Kazuyuki, Machida Masahiko, Yamada Susumu, Kurikami Hiroshi

日本原子力学会2021年秋の大会
Elucidation of migration routes of radiocesium to freshwater fish using the model water area

Miura Tomisato*, Nakanishi Takahiro, Sakuma Kazuyuki

放射能環境動態・影響評価ネットワーク共同研究拠点2020年度年次報告会
Estimation of particulate and dissolved $^{137}$Cs discharge from rivers to the ocean near the Fukushima Dai-ichi Nuclear Power Plant using a simple model

Sakuma Kazuyuki, Aoyama Michio*, Nakanishi Takahiro, Kurikami Hiroshi, Machida Masahiko, Yamada Susumu, Iwata Ayako

Fukushima Dai-ichi and the Ocean; 10 years of study and insight
Simulation of the radiocesium discharge from rivers to the ocean

Sakuma Kazuyuki

令和2年度環境創造センター成果報告会
Transport behavior of radiocesium in the river system during the typhoon Hagibis and torrential rain in October, 2019

Niizato Tadafumi, Sakuma Kazuyuki, Iijima Kazuki, Nakanishi Takahiro

福島県環境創造センター調査研究事業における令和元年度東日本台風等に係る取組
Distributed modeling of radionuclide washing out from the watersheds in solute and with suspended sediments; Case studies Abukuma River, Fukushima Prefecture and Pripyat-Dnieper river system, Ukraine

Zheleznyak M.*, Pylypenko O.*, Kivva S.*, Sakuma Kazuyuki, Igarashi Yasunori*, Wakiyama Yoshifumi*, Konoplev A.*, Namba Kenji*

European Geosciences Union General Assembly 2020
A Coupled watershed-biogeochemical model to simulate dissolved and particulate $^{137}$Cs discharge from a forested catchment affected by the Fukushima accident

Sakuma Kazuyuki, Yoshimura Kazuya, Kurikami Hiroshi, Malins A., Funaki Hironori

European Geosciences Union General Assembly 2020
Applications of radiocesium migration models to Fukushima environmental issues, 1; Overview

Kurikami Hiroshi, Sakuma Kazuyuki, Malins A., Yamada Susumu, Machida Masahiko

Joint International Conference on Supercomputing in Nuclear Applications + Monte Carlo 2020 (SNA + MC 2020)
Applications of radiocesium migration models to Fukushima environmental issues, 2; Simulation study of relationship between suspended sediment and $^{137}$Cs concentrations in river water under various rainfalls for irrigation water intake around Fukushima Dai-ichi Nuclear Power Plant

Sakuma Kazuyuki, Kurikami Hiroshi, Kitamura Akihiro, Iijima Kazuki

Joint International Conference on Supercomputing in Nuclear Applications + Monte Carlo 2020 (SNA + MC 2020)
Evaluation of dissolved $^{137}$Cs discharge characteristics from a forested catchment of the Ohta River

Sakuma Kazuyuki, Yoshimura Kazuya, Nakanishi Takahiro, Funaki Hironori, Tsuruta Tadahiko, Ochi Kotaro, Hayashi Seiji*, Tsuji Hideki*, Ozaki Hirokazu*

放射能環境動態・影響評価ネットワーク共同研究拠点2019年度年次報告会
Study on transport of radionuclides in watershed environment

Nakanishi Takahiro, Tsuruta Tadahiko, Funaki Hironori, Sakuma Kazuyuki, Miura Tomisato*, Yoshida Mitsuaki*

放射能環境動態・影響評価ネットワーク共同研究拠点2019年度年次報告会
Development of a model to reproduce $^{137}$Cs dissolution from dam lake sediment considering temperature and dissolved oxygen condition

Tsuji Hideki*, Hayashi Seiji*, Higashi Hironori*, Sakuma Kazuyuki, Yoshimura Kazuya, Funaki Hironori, Nakanishi Takahiro, Tsuruta Tadahiko

放射能環境動態・影響評価ネットワーク共同研究拠点2019年度年次報告会
Characteristic of dissolved $^{137}$Cs leaching from a forest litter observed from litterbag experiment in Japanese forest affected by the Fukushima nuclear accident

Sakuma Kazuyuki, Yoshimura Kazuya, Nakanishi Takahiro

5th International Conference on Environmental Radioactivity (ENVIRA 2019)
Investigation on distribution of radioactive substances in Fukushima, 9; Analysis of temporal changes in ambient dose equivalent rates in forests over 6 years following the FDNPP accident

Malins A., Imamura Naohiro*, Niizato Tadafumi, Kim M., Sakuma Kazuyuki, Shinomiya Yoshiki*, Miura Satoru*, Machida Masahiko

日本原子力学会2019年秋の大会

Professional Memberships

Research Projects

節水イネ栽培の環境影響：温室効果ガスの放出、重金属類の蓄積および栄養塩の流出

科学研究費助成事業国際共同研究加速基金(国際共同研究強化(B)), 国際共同研究加速基金(国際共同研究強化(B)), 日本学術振興会, Feb, 2019 - Mar, 2022

細見正明, 利谷翔平, 佐久間一幸
放射性Cs 流出予測モデルの開発と観測エフォートの削減の試み

平成30 年度環境放射能分野における学際共同研究事業, 福島大学環境放射能研究所, Jun, 2018 - Mar, 2019

佐久間一幸

Profile Information

Research Interests

Research Areas

Research History

Education

Papers

Misc.

Presentations

Professional Memberships

Research Projects

Menu

Coauthors